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Princess|Lab Grown|IGI

1.71ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG447001591

Shape and cutting style on the report: Princess cut

Certificate IGI LG447001591

Diamond specifications and retailer prices

From $1,227 SGD
$960 USD
As of October 30, 2026
Save $5,749 SGD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,976 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.71ct lab-grown princess diamond

This 1.71ct lab-grown princess sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001591 or 447001591. Listed at 11 retailers as of October 29, 2026, with prices from $1,227 to $6,976, a $5,749 spread on the same certified stone. MOH London lists it at $6,976. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.71
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001591
Dimensions6.52 × 6.36 × 4.69 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
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Top View
6.52 mm6.36 mm1.71 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001591
Side View
Table 69.5%Crown 44.3°Girdle: MediumPavilion 38.3°Culet: NoneDepth 73.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,976 SGD|Low: $1,227 SGD|High: $7,024 SGD|Avg: $3,674 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,227 SGD
Retailer 4$2,094 SGD
Retailer 6$2,345 SGD
Retailer 9$2,396 SGD
Retailer 7$2,646 SGD
Retailer 8$3,264 SGD
Retailer 5$3,820 SGD
Retailer 3$4,189 SGD
Retailer 10$6,957 SGD
MOH London$6,976 SGD

14 data points across 10 retailers

11 retailers$1,227 SGD to $6,976 SGD

A
Cheapest Retailer
-
$1,227 SGD
$960 USD
B+
Retailer 2
-
$2,094 SGD
$1,638 USD
View
B+
Retailer 3
-
$2,279 SGD
$1,783 USD
View
B+
Retailer 4
-
$2,345 SGD
$1,834 USD
View
Final sale: no returns
Retailer 5
-
$2,430 SGD
$1,901 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$2,430 SGD
$1,901 USD
View
B+
Retailer 7
-
$2,646 SGD
$2,070 USD
View
B
Retailer 8
-
$3,820 SGD
$2,988 USD
View
B
Retailer 9
-
$4,189 SGD
$3,277 USD
View
B
Retailer 10
-
$4,554 SGD
$3,562 USD
View
Most Expensive
B
MOH London
LG447001591 · Oct 29
$6,976 SGD
£4,297 GBP
View
10 more retailers have this diamond
Prices start from $1,227 SGDSave up to $5,749 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.71ct Princess
$1,227 SGD